Heim > Backend-Entwicklung > PHP-Tutorial > php购物车有关问题

php购物车有关问题

WBOY
Freigeben: 2016-06-13 11:20:05
Original
1015 Leute haben es durchsucht

php购物车问题

<?php<br />  include ('book_sc_fns.php');<br />  // The shopping cart needs sessions, so start one<br />  session_start();<br /><br />  @$new = $_GET['new'];<br /><br />  if($new) {<br />    //new item selected<br />    if(!isset($_SESSION['cart'])) {<br />      $_SESSION['cart'] = array();<br />      $_SESSION['items'] = 0;<br />      $_SESSION['total_price'] ='0.00';<br />    }<br /><br />    if(isset($_SESSION['cart'][$new])) {<br />      $_SESSION['cart'][$new]++;<br />    } else {<br />      $_SESSION['cart'][$new] = 1;<br />    }<br /><br />    $_SESSION['total_price'] = calculate_price($_SESSION['cart']);<br />    $_SESSION['items'] = calculate_items($_SESSION['cart']);<br />  }<br /><br />  if(isset($_POST['save'])) {<br />    foreach ($_SESSION['cart'] as $isbn => $qty) {<br />      if($_POST[$isbn] == '0') {<br />        unset($_SESSION['cart'][$isbn]);<br />      } else {<br />        $_SESSION['cart'][$isbn] = $_POST[$isbn];<br />      }<br />    }<br /><br />    $_SESSION['total_price'] = calculate_price($_SESSION['cart']);<br />    $_SESSION['items'] = calculate_items($_SESSION['cart']);<br />  }<br /><br />  do_html_header("Your shopping cart");<br /><br />  if(($_SESSION['cart']) && (array_count_values($_SESSION['cart']))) {<br />    display_cart($_SESSION['cart']);<br />  } else {<br />    echo "<p>There are no items in your cart</p><hr/>";<br />  }<br /><br />  $target = "index.php";<br /><br />  // if we have just added an item to the cart, continue shopping in that category<br />  if($new)   {<br />    $details =  get_book_details($new);<br />    if($details['catid']) {<br />      $target = "show_cat.php?catid=".$details['catid'];<br />    }<br />  }<br />  display_button($target, "continue-shopping", "Continue Shopping");<br /><br />  // use this if SSL is set up<br />  // $path = $_SERVER['PHP_SELF'];<br />  // $server = $_SERVER['SERVER_NAME'];<br />  // $path = str_replace('show_cart.php', '', $path);<br />  // display_button("https://".$server.$path."checkout.php",<br />  //                 "go-to-checkout", "Go To Checkout");<br /><br />  // if no SSL use below code<br />  display_button("checkout.php", "go-to-checkout", "Go To Checkout");<br /><br />  do_html_footer();<br />?><br />
Nach dem Login kopieren


代码中的$_SESSION['cart'][$new]是什么意思,为什么要这样子做?

Verwandte Etiketten:
Quelle:php.cn
Erklärung dieser Website
Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn
Beliebte Tutorials
Mehr>
Neueste Downloads
Mehr>
Web-Effekte
Quellcode der Website
Website-Materialien
Frontend-Vorlage